EPDR1 and neoplasm: In this study, based on database mining of The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO), and Clinical Proteomic Tumor Analysis Consortium (CPTAC), RT-PCR, Western blot, and immunohistochemistry (IHC) were further performed to verify that EPDR1 was expressed at a low level in EOC tissues compared to that in normal ovary.